Tuesday, March 20th, 2012

Newest Member of SuperSwitcher II(TM) Family Has Micrel's Hyper Speed Control(TM) Delivering Ultra-Fast Transient Response and Minimizing Output Capacitance While Achieving Highest Power Density

SAN JOSE, CA--(Marketwire) - Micrel, Inc. (NASDAQ: MCRL), an industry leader in analog, high-bandwidth communications and Ethernet IC solutions, today announced the MIC28510, a wide-input synchronous switching regulator IC that provides step-down conversion with better than 94 percent peak efficiency from an input voltage as high as 75V with maximum output current of 4A. The solution eliminates the need for a costly dual-stage conversion approach for point-of-load applications. The MIC28510 delivers up to 100W of power in a 13cm2 device -- a new standard for power density. The MIC28510 is currently available in volume; pricing starts at $2.15 for 1K quantity. Samples can be ordered at: http://www.micrel.com/ProductList.do

Benefiting from Micrel's proprietary adaptive on-time control architecture, the MIC28510 provides ultra-fast transient response for today's demanding applications such as base stations, Power-over-Ethernet, home security systems and solar inverters. The MIC28510 integrates low-Rdson, high-side and low-side power switches to provide a highly efficient output down to 0.8V. The MIC28510 is also Any Capacitor(tm) stable independent of output ESR, thus solving the stability problem power supply designers face with distributed output capacitance.

"By combining an exceptionally wide input voltage range, superior stability and transient response with innovative packaging that ensures the best power density and thermal performance across the entire load range, the MIC28510 delivers unprecedented performance and flexibility," said Brian Hedayati, marketing vice president for the analog division at Micrel. "This places the MIC28510 in the sweet spot for designers tackling the most demanding applications."

The MIC28510 also offers a variety of other features that greatly simplify the design engineer's task, including a programmable switching frequency of up to 500 kHz, an enable pin for very low power shutdown, internal soft start, undervoltage lockout and internal compensation. The device also provides a host of protection features such as pre-bias safe start-up, over temperature protection, foldback current limit, short circuit protection and a -40degC to 125degC junction temperature range. The MIC28510 is available in a lead free 28-Lead 5mm x 6mm MLF® package.

For more information or to order the MIC28510 evaluation board, visit: http://www.micrel.com/page.do?page=/product-info/products/mic28510.jsp

Contact Profile

Micrel, Inc.

Micrel, Inc is a leading global manufacturer of IC solutions for the worldwide analog, Ethernet and high bandwidth markets. The Company's products include advanced mixed-signal, analog and power semiconductors; high performance communication, clock management, Ethernet switch and physical layer transceiver ICs. Company customers include leading manufacturers of enterprise, consumer, industrial, mobile, telecommunications, automotive, and computer products. Corporation headquarters and state-of-the-art wafer fabrication facilities are located in San Jose, CA, with regional sales and support offices and advanced technology design centers situated throughout the Americas, Europe and Asia. In addition, the Company maintains an extensive network of distributors and reps worldwide. Web: http://www.micrel.com

Note: MLF is a registered trademark of Amkor Technology. Hyper Speed Control, SuperSwitcher II and Any Capacitor are trademarks of Micrel, Inc.
Julieanne DiBene Marketing Communications
P: 1-408-474-1276
W: www.micrel.com





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